Fog signaling apparatus for railways and the like.



N5. 851.989. v PATENTED APR. 30, 1907. A. W.'HUMPHREY & A. H. MAWBBY, FOG SIGNALING APPARATUS FOR RAILWAYS AND THE LIKE.

APPLICATION FILED DEG-17,1906.

2 SHEETS-SHEET 2.

9 I In 1. I, I, I wwa M :ZIEJ/D 47% W 'JJKM UNITED STATES PATENT @EFIGE.

ARTHUR IVILLIAM HUMPI-IREY AND ALEXANDER HORATIO MAWBEY, OF GRIFF CROSSING, NEAR NUNEATON, ENGLAND.

FOG SIGNALING APPARATUS FOR RAILWAYS AND THE LIKE.

Specification of Letters Patent.

Patented April 30, 1907.

Application filed December 17, 1906. Serial No. 348,155. I

certain new and useful Improvements in Fog Signaling Apparatus for Railways and the Like; and we do hereby declare the following to be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This 1nvent1on relates to new or improved fog signaling apparatus for railways and the like, of the kind whereby audible warning is given to the driver upon approaching a signal at danger, the object being to provide simple and eflicient means whereby the usual whistle of the locomotive or the like is sounded for this purpose, the device being actuated by the usual semaphore signal wires and con sequently brought into and out of operation simultaneously with the rising and falling of the semaphore respectively.

In order that this invention may be fully understood, it will now be described with reference to the accompanying drawings, in which Figure 1 is a diagrannnatie side elevation partially in section, of the mechanism according to this invention, Fig. 2 is a plan of the mechanism arranged on the running track, hereinafter described, and Fig. 3 is a plan of the mechanism carried by the locomotive or the like.

As shown in the drawings this invention comprises a bracket or support a secured beside one of the running rails b. Pivoted in this bracket or support a is an arm a having an extension a and a weight a. Upon the pivotal spindle of this arm a a shorter arm or lever c is mounted, the extremity of which is secured to the semaphore signal wire by a suitable flexible connection 0 passing over pulleys 0 One of these devices is mounted at or near each semaphore as required.

Between the foot plates, or at any suitable part of the locomotive or the like, a rocking frame at is mounted upon a suitable shaft (1. Suitable levers e are carried one by the shaft d and one by a pin 7 (Figs. 1 and 3,) respectively, and each of these levers is secured at one extremity to a slotted link g carried by the frame (1. The frame (1 also carries a rod 71, connected by means of a bell cranki and suitable levers and rods to the whistle of the locomotive.

It will be seen that the two levers e are thus arranged one toward each side of the lecomotive and project in opposite directions thus permitting the operation hereinafter described, to take place with the locomotive running in either direction, that is to say, forward or reversed, while either lever 6 may be disengaged from its link and secured out of operation by a pin passing through it and a hole or perforation 0 formed higher in the link 9, as shown in dotted lines (Fig. 1).

In practice, when the line is clear and the usual semaphore signal lowered, the wife will be in tensionand the arm a will be held in its lowered position as shown in dotted lines (Fig. 1), but when the semaphore is at danger and the wire slack, the weight a will raise the arm a into a vertical position until it rests upon suitable projections or the like k on the bracket a. The arm a is then in such a position that upon a locomotive passing thereover, one of the levers c thereon comes into contact with the arm a and is thereby raised, turning the frame and drawing down the rod h, so operating the whistle j, which is preferably retained open by a suitable spring catch (not shown), engaging one of the arms, until released by the driver, whose attention is thus insured. A suitable spring or springs is or are provided where required to return the parts to their normal positions.

Having now described ou1-inventi0n, what we claim as new and desire to secure by Let ters Patent is 1. The combination, with a tappet supported adjacent to the track, of a tappet lever pivoted to the engine, a frame also pivoted to the engine, a link connecting the free end portion of the said frame with the said tappet lever, said link being provided with a plurality of pivot holes at different points of its length so that the said lever can be pivoted to it in a position to engage with or to clear the said tappet, and a rod for operating an audible signal also connected to the said frame.

2. The combination, with a tappet supported adjacent to the track, of two pivots carried by the engine, two tappet levers In testimony whereof We afliX our signatures in presence of two Witnesses.

- ARTHUR WILLIAM HUMPHREY,

ALEXANDER HORATIO MAWBEY.

mounted on the said pivots and inclined in l opposite directions, a frame mounted on one of the said pivots, links connecting the free end portion of the said frame with the upper J WVitnesses:

l SARAH HOLLAND, l DAISY ELLEN STONES.

and adjacent ends of the said tappet levers, and a rod for operating an audible signal also connected to the said frame. 

